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ewelinaskula
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Biology Mind Map on Light dependent reaction, created by ewelinaskula on 12/04/2013.

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ewelinaskula
Created by ewelinaskula almost 12 years ago
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Light dependent reaction

Light dependent reactionOccurs inthylakoidsInvolves capture of lightOxidation and reduction-oxidation results in energybeing given out, reduction-energy taken inMaking ATPChlorophyllmolecule absorbslight EnergyBoosts energy of of apair of electrons -theyare in an exited stateElectrons leave thechlorophyll molecule aretaken up by an electroncarrierChlorophyll molecules has been oxidised,the electron carrier reducedThe electrons are passed along a number of electroncarriers in a series if oxidation-reduction reactionsElectron carrier form a transfer chain in themembrane of the thylakoidsEach new carrier- lower energy this lost energy isused to combine inorganic phosphate moleculewith an ADP to make ATPATP + H2O => ADP + Pi + energyPhotolysis of waterLost Chlorophyll electrons are replacedProvided from watermolecules that are split usinglight energy2H2O=> 4H+ + 4e- + O2H+ ions are taken up by a electron carrier called NADP Andbecomes reduced to NADPH which then enters the light-independent reactionNADPH is important because it is afurther potential source of chemicalenergyO2 byproduct used inrespiration or diffuses out ofthe leafDouble click this nodeto edit the textClick and drag this buttonto create a new node